Support for gratings



W. E. IRVING.

SUPPORT FOR GRATINGS.

APPLICATION FILED JULY 3,1919.

1,327,71 1. Patented Jan. 13, 1920.

1 Inventor Mm z Byg a Attw WALTER E. IRVING, 0F GLENBROOK, CONNECTICUT.

SUPPORT FOR GRATINGS.

Specification of Letters Patent.

Patented Jan. 13, 1920.

Application filed July 3, 1919. Serial No. 308,540.

.ventilating openings over subways, etc.

Heretofore these gratings have usually been supported in a rectangular angle-iron frame, the horizontal flanges of the angle-irons projecting inward and forming a step on which the ends of the grating rested. The ends of the grating bars extending across this step to the vertical flange of the angle-iron formed a series of pockets in which dirt and decayed matter collected, and from which this material could not be easily cleaned out. Such collected matter holds moisture and this rapidly rust-s out the grating and support. My invention overcomes these difficulties by providing a self-cleaning support for the grating.

The best form of apparatus embodying my invention at present known to me is illustrated in the accompanying sheet of drawing, in which:

Figure 1 is a detail vertical section on line 11 of Fig. 2 of one of the supports and alsoshows a part of the supported grating, and

Fig. 2 is a plan view of the grating and two supports but with parts broken away.

Throughout the drawings like reference characters indicate like parts. 1, represents a mass of concrete which usually surrounds the opening in which the grating is placed. In this is embedded the horizontal flange 3, of an angle iron, the vertical flange 2, of which forms a facing and retaining wall for the upper portion of the concrete. Preferably this angle-iron is still more securely fastened in the concrete by a series of bent anchors, 4, 4, fastened to flange 8, and eX- tending farther into the concrete. The structure so far described forms an anchorage for the grating supports which anchorage has a smooth vertical face against which the ends of the grating bars may abut.

To this anchorage are fastened a plurality of metal strips bent to form knees 5, 5.

The upper portions of each knee-forming strip lies against the vertical flange 2, of the ing sidewise movement angle-iron forming the anchorage face, and is fastened thereto by rivets 6, 6. The lower portion of the strips is bent outward, downward and backward to form the knee, its lower end preferably abutting against the anchorage port.

7 ,7, are horizontal bars fastened to knees 6, '6, by rivets 8, 8, and 9 is the grating, the bars of which rest on the upper surfaces of bars 7, 7. As shown the upper portions of some of the knee-forming strips extend into the spaces between the ends of the grating bars and serve as stops or cleats preventof the grating on bars 7, 7.

The bars 7, 7, being offset from the anchorage wall or face by knees 6, 6, there are open spaces under the grating ends adjacent the anchorage through which dirt and refuse may pass. Any dirt striking knees 6, 6, shdes down their inclined upper surfaces, and any small amounts on the narrow upper edges of bars 7, 7, are soon blown 011'.

Having described my invention, I claim:

1. support for gratings comprising in combination an anchorage, a plurality of horizontally projecting members mounted on said anchorage and a horizontal bar fasten'ed to said projecting members offset from the anchorage and having its upper edge adapted to serve as a support for the ends of the bars of a superposed grating.

2. A structure such as set forth in claim 1, in which the horizontally projecting members extend upward and are adapted to enter between some of the bars of the superposed grating, whereby side movement of the said grating on the horizontal bar is prevented.

3. A structure such as set forth in claim 1 in which the horizontally projecting members extend upward and are adapted to enter between some of the bars of the superposed grating and have their upper surfaces slopknees, whereby there is formed a support for" a superposed grating vhich support is offset from the anchorage.

5. An end support for a grating comprising in combination a body of concrete, an angle iron having a horizontal flange buried in said concrete and a vertical flange forming a vertical retaining wall for the upper portion of the concrete mass, projecting members fastened to the outer face of said vertical flange and a horizontal bar fastened to said projecting portions and thereby offset from the anchorage formed by the concrete mass and the embedded angle iron.

6. A structure such asset forth in claim 5, combined with bent anchor strips fastened 15 to the horizontal flange of the angle iron and still further embedded in the concrete.

WALTER E..IRVING.

Witnesses: I

' B. O. VANDEWATTS PAUL LEON Pmcn. 

